根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
Shoppers who carefully plan their visit to the grocery store can save money on their grocery bills. __71__
Shoppers should visit the grocery store on a full stomach by scheduling their trip immediately after a large meal. If that's not possible, they should find something healthy to eat while preparing a grocery list. __72__
Although having a list and sticking to it is the most important factor in saving money, shoppers must prepare lists wisely in order to save. __73__ Many special buys are announced through the local newspapers, so buying the “grocery issue”is worth the investment(投资). However, it's important to remember that many newer, more expensive products first offered through coupons may not yield enough savings for shoppers to give
